coup to remove the Liberal Prime Minister Viscount of Ouro Preto, who had been appointed by the Emperor and who enjoyed the confidence of the Chamber of Deputies. Marshal Deodoro da Fonseca, the senior leader and military figure in the plot, was supportive of the Conservative Party and took part in the coup upon invitation by other officers who wanted to overthrow the Liberal Prime Minister. Initially, Deodoro intended to force a Cabinet change, but not to depose Emperor Pedro II. Several of his co-conspirators, however, were republicans, and later in the day the events of the military coup progressed to the abolition of the monarchy. The decision to establish a republican provisional government was taken when Deodoro (who had already proclaimed "Long Live His Majesty the Emperor" during the public acts of the coup) received, from his republican co-conspirator Benjamin Constant Botelho de Magalhães, the false news that the Emperor intended to appoint Gaspar da Silveira Martins, a declared enemy of Deodoro, as the next Prime Minister. After the republic was proclaimed, a presidential executive replaced the parliamentary system of government. Presidents of the Council of Ministers of the United States of Brazil (1961–1963) After the coup d'état that abolished the monarchy and proclaimed Brazil a republic, the system of parliamentary government was not retained. The new republic instead adopted the model of a presidential executive, except for a brief period (September 7, 1961 to January 23, 1963) during the presidency of João Goulart. The parliamentary system was adopted in 1961 as a compromise solution to a grave political crisis, and was again abolished, this time by plebiscite, in January 1963. The official title of the head of the government during that period was Presidente do Conselho de Ministros (President of the Council of Ministers), the same official title possessed by the 19th-century prime ministers of the Brazilian Empire. However, the holders of the office were informally addressed and referred to as Premier or Prime Minister. Often, the expression President of the Council, a simplified version of the official title, was also used. List of presidents of the Council of Ministers of the United States of Brazil Parties Timeline See also List of Brazilian monarchs List of governors-general of Brazil List of presidents of Brazil President of Brazil References Prime Ministers of Brazil Political history of Brazil Empire of Brazil politicians 1847 establishments in Brazil 1889 disestablishments in Brazil